Question

9. Discs of radius 4 cm are cut from a rectangular plastic sheet of
length 84 cm and width 24 cm.
(a) How many complete discs can be cut out?
Find:
(b) the total area of the discs cut
(c) the area of the sheet wasted.​

Answer 1

Answer:

Assuming the discs (of diameter 8cm) are laid out in a rectangular grid, only 8 discs lie along the length, and the sheet is 3 discs wide.

That makes 30 discs.

If you want to change the layout, you can probably fit more discs, but you will never get 40 of them.

Step-by-step explanation:

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